King active on central or near-central ranks (3rd–6th) in a king-and-pawn endgame, navigating pawn structures without being under attack.
SAE concept sae_11483 fires when king active on central or near-central ranks (3rd–6th) in a king-and-pawn endgame, navigating pawn structures without being under attack.. It appears in 278 of 9,950 Climbchess puzzles (2.8%), spanning ELO 605–2695 (median 1795).
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This page documents King active on central or near-central ranks…, one of 4,505 interpretable chess concepts extracted from Leela Chess Zero via sparse autoencoders. The full feature description from our SAE labelling pipeline reads:
King active on central or near-central ranks (3rd–6th) in a king-and-pawn endgame, navigating pawn structures without being under attack.
This pattern fires in 278 of our 9,950 tagged puzzles. The puzzles where it appears span ELO 605 to 2695, with a median rating of 1795. That distribution tells you whether this is a beginner cue or a master-level subtlety.
Pattern statistics
| Concept ID | sae_11483 |
|---|---|
| Puzzles where it fires | 278 |
| Min ELO | 605 |
| Median ELO | 1795 |
| Max ELO | 2695 |
| Coverage | 2.79% of puzzle set |
Related concepts
The five concepts most often co-firing alongside this one (Jaccard similarity over the puzzle co-occurrence graph) are:
Example puzzles
Below are 10 puzzles spanning the rating distribution. Each links to its own page with full move list and related concepts.
- Puzzle yS8nE — ELO 605, themes: crushing, endgame, long, side to move: Black
- Puzzle yhoJZ_M — ELO 828, themes: crushing, endgame, pawnEndgame, side to move: Black
- Puzzle 01SLc_M — ELO 960, themes: crushing, deflection, endgame, side to move: Black
- Puzzle zq3Ec_M — ELO 1189, themes: crushing, endgame, master, side to move: White
- Puzzle 01vQy_M — ELO 1571, themes: crushing, endgame, master, side to move: White
- Puzzle zTwNF_M — ELO 1795, themes: crushing, endgame, long, side to move: Black
- Puzzle zxApJ_M — ELO 1924, themes: crushing, deflection, endgame, side to move: White
- Puzzle zPT0y_F — ELO 2070, themes: crushing, endgame, long, side to move: Black
- Puzzle za3nZ_F — ELO 2274, themes: crushing, defensiveMove, endgame, side to move: White
- Puzzle zzQJy — ELO 2401, themes: crushing, defensiveMove, deflection, side to move: Black
How to use this page
If you want to train this pattern, open the Climbchess trainer and filter for puzzles tagged with this concept. The trainer surfaces them at the right difficulty for your current rating, and tracks how often you spot the cue versus miss it. You can also browse the related concepts above to see neighbouring ideas in feature space.
Climbchess concepts are not heuristics written by a human author. Each one corresponds to a single direction in the residual stream of Leela Chess Zero that activates on a specific board feature, then was labelled by reading the top-activating positions. This makes the catalogue exhaustive (every Leela-detectable pattern is in here somewhere) and falsifiable (you can replay our extraction).
Frequently asked
What is SAE concept sae_11483?
King active on central or near-central ranks (3rd–6th) in a king-and-pawn endgame, navigating pawn structures without being under attack. It is one of 4,505 interpretable features extracted from Leela Chess Zero's residual stream via sparse autoencoders, then labelled by reading the top-activating positions.
Where does this pattern appear?
In 278 tagged puzzles (2.8% of the set), spanning Lichess ELO 605 to 2695 with a median of 1795.
How do I train it?
Open the Climbchess trainer and filter for puzzles tagged with this concept. The trainer adapts difficulty using your live recognition profile and tracks how often you spot the cue versus miss it.
Is it free?
Yes. Climbchess is free forever, with no account, email, or signup required. You can delete your data at any time.